Skin toning device



FIG. 1 is a perspective view of a skin toning device in accordance with the design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing is included for the purpose of illustrating portions of the skin toning device and forms no part of the claimed design. 

CLAIM The ornamental design for a skin toning device, as shown and described. 